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Finding the Fourth Proportional to 584,563.80, 876,845.70 and 490,085.40

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Solution

The fourth proportional to 584,563.80, 876,845.70 and 490,085.40 is: 735,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,563.80 : 876,845.70 = 490,085.40 : x
  2. Step 2: Convert to fraction form
    584,563.80/876,845.70 = 490,085.40/x
  3. Step 3: Cross multiply
    584,563.80x = 876,845.70 × 490,085.40
  4. Step 4: Simplify right side
    584,563.80x = 429,729,275,622.78
  5. Step 5: Solve for x
    x = 429,729,275,622.78/584,563.80
  6. Step 6: Final answer
    x = 735,128.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.